Carriage-wrench



(No Model.)

D. TRUE.

CARM-AGB WRBNGH. No. 279,993. Patented June 26, 1883.

E Pfg; Z-

WITNEEEEE NMI-:BITCH N. PETERS. Phew-Lithbgmphar, Washnglnn. DA C.

UNITED STATES PATENT OFFICE.

DAVID TRUE, .OF SALISBURY, MASSACHUSETTS.

CARRIAGE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 279,993, dated June 26, 1883.

' Application Iiled March 17,1883. (Nomodcl.)

To all whom it may concern,.-

Be it known that I, DAVID TRUE, of Salisbury, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Carriage-Wrenches', of which the following is a specification.

In this wrench the construction is such that different sizes and styles of sockets or other devices for grasping nuts may be applied to the stock or handle of the same instrument. The

wrench is especially adapted for use as a carriage-wrench, but may be applied to nuts, 85e., on other articles, if desired.

In the accompanying drawings, in which similar letters of reference indicate like parts, Figure l is a view in perspective of a carriagewrench embodying my invention. Fig. 2 is a longitudinal section of the same. Figs. 3 and 4 are respectively front and rear views of the socket. Fig. 5 is a rear view of a portion of the bar A. v

A is a bar, provided at its ends with the weights or balls A and central` opening, a. Screwed into this bar at said opening is the tube or gas-pipe B, provided at its outer end with the ring B.

C is a handle loosely placed upon the tube B and counterbored at C.

D is a plunger placed loosely in the tube B and enlarged at its ends. The plunger D, handle C, tube B, and so much of the bar and balls l,

A A as is above described are constructed substantially as shown and described in Letters Patent of the United States numbered 271,549, and granted to me January 30, 1883.

Centrally built upon the face of the bar A is a flange, E, which is circularin shape, and may be a complete circle or a segment of one. H and H are respectively the sides and back or base, the latter circular in shape, of the socket which is applied to the nut. The

socket is provided with pins h, fitting into corresponding openings, e, in the bar A, and a graduated or inclined track, K, is formed next the periphery of the base of the socket by gradually thinning the metal from x to y, Fig. 3. A clamp, L, substantially as shown, and made preferably of malleable iron, is bent over the flange E into the shape shown in the drawings, a semicircular depression being preferably, but not necessarily, made in the back of the bar A at c. The desired size or style of socket having been selected,it is placed against the bar A,within the iiange E, its pins h in the openings e and the slot I allowing the base H of the socket to pass the clamp L. The said clamp is then slid around on the flange E from y toward x until it binds upon the base H of the socket, holding it rmly in place. The wrench is then used in the manner described in the Letters Patent above referred to, the handle C being held in the hand,while the bar A is revolved by means of the balls A to remove the nut,which is pushed out of the socket by the plunger D. Thus it will be seen that sockets may be made of different sizes and shapes, so as to fit square and haxagonal nuts7 for instance, and the shank shown in the patent above referred to is entirely dispensed with.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

l. In a wrench, the combination, with the bar A, provided with the flange E and clamp L, of the socket H H, provided with the opening I, substantially as and'for the purpose set forth.

2. In a wrench, the combination of the bar A, provided with the ilange E, the detachable socket H H, provided with the graduated or inclined track l, and recess I, and the clamp L, substantially as and for the purpose described. Y

DAVID TRUE.

Witness es z HENRY W. WILLIAMS, J osEPH IsnBAUeH. 

